This is the arachnid version of the common finishing scene in a porn. When the female spider eats the male spider at the end of making love, this is the spider money shot.

Also sometimes defined as the result if Peter Parker was bitten by a radioactive Brazilian Wandering spider and developed Priapism, the state of a permanent erection, and could spurn spider silk from his urethra. The end result would be a series of literal money shots with his webbing in order to rescue and or defeat a villain.